import json
from util import unique_id

_str = 'https://www.douyin.com/aweme/v1/web/search/item/?device_platform=webapp&aid=6383&channel=channel_pc_web&search_channel=aweme_video_web&sort_type=0&publish_time=0&keyword=%E5%B0%8F%E7%8C%AB&search_source=tab_search&query_c'
print(_str.find('https://www.douyin.com/aweme/v1/web/search/item/?device_platform=webapp'))